Re: [PATCH v2] dt-bindings: dma: arm,pl330: Add missing 'iommus' property
From: Rob Herring
Date: Fri Sep 02 2022 - 12:12:27 EST
On Mon, Aug 01, 2022 at 03:02:37PM -0600, Rob Herring wrote:
> The pl330 can be behind an IOMMU which is the case for Arm Juno board.
> Add the 'iommus' property allowing for 1 IOMMU entry per channel for
> writes and 1 IOMMU entry for reads.
>
> Signed-off-by: Rob Herring <robh@xxxxxxxxxx>
> ---
> v2:
> - Include IOMMU entry for read channel
> ---
> Documentation/devicetree/bindings/dma/arm,pl330.yaml | 6 ++++++
> 1 file changed, 6 insertions(+)
Ping!
>
> diff --git a/Documentation/devicetree/bindings/dma/arm,pl330.yaml b/Documentation/devicetree/bindings/dma/arm,pl330.yaml
> index 2bec69b308f8..4a3dd6f5309b 100644
> --- a/Documentation/devicetree/bindings/dma/arm,pl330.yaml
> +++ b/Documentation/devicetree/bindings/dma/arm,pl330.yaml
> @@ -55,6 +55,12 @@ properties:
>
> dma-coherent: true
>
> + iommus:
> + minItems: 1
> + maxItems: 9
> + description: Up to 1 IOMMU entry per DMA channel for writes and 1
> + IOMMU entry for reads.
> +
> power-domains:
> maxItems: 1
>
> --
> 2.34.1
>
>